Prevent brick machine of mistake start -up

The utility model discloses a prevent brick machine of mistake start -up, including frame of compriseing upper beam, underbeam, stand and the movable mould roof beam that links to each other with the lead screw, being provided with screw rod driving device on the upper beam, the underbeam bottom is provided with the moulding base of taking buffer, and about activity mould roof beam slide with the inboard guide rail that sets up of stand and link to each other in both ends, on the stand articulated have carry out spacing movable supporting plate to activity mould roof beam, be used for detecting movable supporting plate open and shut the position position sensor with the screw rod driving device electricity is connected. The utility model discloses simple structure, convenient to use can be when the brick machine is shut down carry on spacingly with movable supporting plate is light rotatory to activity mould roof beam below, avoid the unexpected whereabouts of emergence activity mould roof beam accident, and